All the other characters have titles like "Travelling Artist" and "Destiny Awakened".
Nightmare is called the Azure Night in some of the previous games, so his title of "Azure Nightmare" gave me a chuckle.

God, I'm getting so many ragequits from people that don't like being turned into sugary treats and consumed. I've never laughed so hard over a game. Cookie beamed a Gotenks who thought he could raw ghost out the gate as his last character. ;V; priceless